JP2004180825A - Preliminary washing device for dish - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a preliminary washing device for dishes capable of improving a dish washing effect and increasing the frequency of reuse by automatically supplying preliminarily washed dishes to a main washing device. <P>SOLUTION: The preliminary washing device 2 for preliminarily washing the dishes D before feeding them to the main washing device comprises: supply means 17-20 for supplying the dishes D before being washed into the preliminary washing device successively; a carrying means 21 for transferring the dishes D received from the supply means 17-20 to a preliminary washing part; and a discharge means 36 provided near the terminating end of the carrying means 21 and for discharging the dishes D after being preliminarily washed out of the preliminary washing device successively. The preliminary washing part has a washing nozzle 35 for jetting washing liquid to the dishes. <P>COPYRIGHT: (C)2004,JPO&NCIPI

Description

[0001]
TECHNICAL FIELD OF THE INVENTION
The present invention relates to a dishwasher pre-washing apparatus that can prewash a dish on which sushi or the like is placed, for example, so that the main washing apparatus can enhance the washing effect.
[0002]
[Prior art]
In a sushi restaurant called a conveyor belt sushi, a large number of used dish plates on which sushi and the like are placed are automatically washed by a washing device and reused efficiently. As a conventional dishwashing apparatus, there are provided a supply means for dropping dishware stacked on a supply port one by one, a conveying means for conveying the dish, and upper and lower surfaces of the dish during the conveyance. Include a rotary brush for wiping while spraying a cleaning liquid, an air nozzle for draining the dish after wiping, and a discharge means for raising the dish after drain toward an outlet (for example, Patent Documents 1 and 2).
[0003]
[Patent Document 1]
JP-A-09-238881 (pages 2, 3; FIG. 2)
[Patent Document 2]
JP-A-2002-86091 (page 3, FIG. 2)
[0004]
[Problems to be solved by the invention]
In the conventional dishwashing apparatuses described in Patent Literatures 1 and 2 described above, in order to increase the frequency of reuse of the dish, the cycle time from supply to discharge of the dish is reduced. Insufficient removal of protein and starch stains on the dishes required some dishes to be washed again. In addition, it is necessary to temporarily place the dishware in a sink or the like and then supply the dishware to the washing device, which is troublesome and reduces the frequency of reusing the dishware.
[0005]
In the present invention, in order to solve the above-mentioned problems, it is possible to eliminate the trouble of immersing the dish in a sink or the like and automatically supply the pre-washed dish to the main cleaning device, It is an object of the present invention to provide a dishwasher pre-washing device capable of enhancing the effect of washing dishware and increasing the frequency of reuse.
[0006]
[Means for Solving the Problems]
In order to achieve the above object, the dishwasher pre-washing device of the present invention is a prewashing device for prewashing dishware before being put into a main washing device, and sequentially prewashes dishware before washing. Supply means for supplying the inside of the apparatus, transport means for transferring the dish received from the supply means to the pre-cleaning section, and pre-cleaning the pre-cleaned dish dishes which are provided close to the end of the transport means. Discharging means for discharging the cleaning liquid to the outside of the apparatus;
According to this feature, the cleaning liquid can be soaked in the food waste by spraying the cleaning liquid on the dish plate in the pre-cleaning section, and by keeping the wet state until it is put into the main cleaning device, the cleaning effect in the main cleaning device Can be increased.
[0007]
In the pre-cleaning apparatus, the supply means intermittently drops dishware before washing, which is stocked in a stacked state, onto the transport means in order from the lowest one, and the discharge means is a push-up member. It is preferable that the dishes are sequentially pushed up to accumulate in a stacked manner upward.
According to this, if the dish plates are supplied to the pre-washing device, the pre-washed dish plates can be automatically laminated.
[0008]
In the above pre-cleaning device, it is preferable that the pre-cleaning unit includes a brush for wiping the upper surface of the dishware being conveyed before spraying the cleaning liquid onto the dishware.
According to this, the large food waste is brushed off before spraying the cleaning liquid, so that the cleaning effect is greatly improved.
[0009]
In the above pre-cleaning apparatus, the transporting means includes a pair of roller chains that are wound around a driving sprocket and a driven sprocket and run endlessly, and a transport bar that is suspended between the two roller chains at predetermined intervals. Preferably, the bottom of the dish is inserted into a frame-shaped space surrounded by an adjacent transport bar and a pair of roller chains for transport.
In this case, the dishes are transported stably and orderly, so that the dishes do not come into contact with each other and cannot be transported.
[0010]
In the above pre-cleaning device, it is preferable that the horizontal transport portion of the pair of roller chains is supported by a pair of upper and lower chain guides.
In this way, the horizontal conveying portion of the roller chain is prevented from swinging up and down, so that the dishes can be more stably conveyed.
[0011]
In the above pre-cleaning device, it is preferable to provide a transfer device for moving a plurality of dish plates accumulated in a stack by the discharging means to a supply port of the main cleaning device. By doing so, a plurality of tableware dishes after the pre-cleaning can be automatically moved to the supply port of the main cleaning device and supplied together, thereby saving labor.
[0012]
BEST MODE FOR CARRYING OUT THE INVENTION
Hereinafter, embodiments of the present invention will be described with reference to the drawings.
[0013]
FIG. 1 is a front view showing an example in which a dishwasher pre-cleaning device 2 of the present invention is installed adjacent to the left side of the main cleaning device 1, and FIG. FIG. 3 is a front view of the central vertical section of the pre-cleaning device 2, FIG. 4 is an enlarged vertical side view of the IV-IV line of FIG. 3, and FIG. 5 is a cross-sectional plan view of the VV line of FIG. It is a top view of a transfer device.
[0014]
The main cleaning device 1 of this embodiment is substantially the same as the known cleaning device described in Patent Document 1 (Japanese Patent Application Laid-Open No. 9-238881), that is, the cleaning device previously proposed by the present applicant. The same configuration is used.
[0015]
In FIG. 2, a main cleaning device 1 is provided at a supply port 4 above a left end portion of a case-shaped housing 3 to guide and supply a pre-cleaned dish plate D discharged from the pre-cleaning device 2. And a supply roller 7 provided with a pair of grooves 6 provided immediately below the plate 5 to pinch and drop the dish D in the supply guide tube 5 one by one from the lower end thereof. A pair of left and right transfer screws 8 which are provided in parallel in the left and right direction, and which receive the outer peripheral edge of the dish D sequentially dropped one by one from the supply roller 7 by a spiral groove and convey the same to the right. And a pair of upper and lower rotating brushes 9 for wiping both upper and lower surfaces of the dish D being conveyed, and a pair of upper and lower jets for spraying water, hot water, or a cleaning liquid toward a contact portion between the both rotating brushes 9 and the dish D. Compressed air (or hot air pressure) is applied to both the upper and lower surfaces of the washing nozzle 10 and the dish D. A pair of upper and lower air nozzles 11 to be dried by rubbing, a push-up / discharge device 12 that is provided movably up and down on the side adjacent to the right end of the conveying screw 8 and pushes up the dishware D after drying, The tableware D provided above the right end of the housing 3 and pushed up by the pushing-up / discharging device 12 is accommodated one by one, and is prevented from descending by a support claw (not shown) and guided to the upper discharge port. A discharge guide tube 13 for stocking and stacking in a plurality of guide bars 14 erected on the upper surface of the housing 3 is provided.
[0016]
As shown in FIGS. 3 to 5, the pre-cleaning device 2 is provided in a case-like housing 16 fixed to the upper surface of a gantry 15 provided with casters at four corners on the lower surface.
[0017]
Supply means is provided at the left end of the upper surface plate 16a (see FIG. 1) which is smaller than the height of the housing 3 of the main cleaning device 1 on the left side of the housing 16. This supply means is for supplying the dishware D before washing to the chain-type transfer device 21 as the transfer means, and the supply means will be described in detail below.
[0018]
A supply port 17 is opened in the upper surface plate 16a, and a supply guide cylinder 18 is fixed downward at the opening edge. A plurality of (for example, four) guide bars 19 are erected on the upper surface of the upper surface plate 16a surrounding the supply port 17, and the dishware D is stored in a stacked state inside the guide bar 19 surrounded by the guide bars 19. Has become. Also, two long and short guide bars 19a are vertically provided on the lower surface of the upper surface plate 16a surrounding the supply guide tube 18, respectively.
[0019]
Immediately below the supply guide cylinder 18, a pair of left and right supply rollers 20, 20 each having a groove 20a for sandwiching the left and right outer peripheral edges of the dish D, on the outer peripheral surface, as in the main cleaning device 1, is driven by a motor (not shown). They are pivotally supported so that they can rotate relative to each other.
[0020]
Below the supply rollers 20, 20, there is provided a chain-type transport device 21 (transport means) for transporting the dish D to the right.
[0021]
As shown in FIGS. 3 and 5, the chain-type transfer device 21 includes a pair of drive sprockets 23, 23 that are rotated by a drive motor 22 in a clockwise direction in a front view in FIG. At the left end, a pair of driven sprockets 24, 24 provided opposite to both driving sprockets 23, a pair of large-diameter idler sprockets 25 provided diagonally below and right of both driven sprockets 24, And a pair of roller chains 26, 26 wound around sprockets 23, 24, 25.
[0022]
On the upper surface of an inverting L-shaped bracket 27 attached to the opposing surfaces of both roller chains 26 at predetermined intervals, transport bars 28 for dishware D are mounted at regular intervals. The distance between the pair of roller chains 26 and the distance between the adjacent transport bars 28 are such that the bottom of the dish D excluding the flange can be inserted.
[0023]
When the groove 20a of the supply roller 20 faces downward, that is, when the dish D sandwiched between the rollers 20 falls, the two adjacent transport bars 28 pass immediately below the supply guide tube 18. Then, the rotation of the supply roller 20 and the running speed of the roller chain 26 are adjusted so that the bottom of the dropped dishware D is inserted into the frame-shaped space between the two transport bars 28 and the pair of roller chains 26. Synchronized.
[0024]
Reference numeral 29 denotes a pair of upper and lower chain guides for preventing run-out of the horizontal conveying portion and the downward running portion of the roller chain 26. As shown in FIG. It is attached by a bolt 31.
[0025]
As shown in FIG. 3, right above the supply guide tube 18 in the horizontal transport section of the roller chain 26, a pair of left and right anti-lifting rods 32, whose left ends are bent upward, are provided. It is attached to the support frame 30 (see FIG. 4) so as to be close to the upper surface of the end of the tableware D being conveyed.
[0026]
When the dish D reaches the lifting prevention rods 32, a pre-washing action is performed on the dish D from the pre-washing section arranged at the top. Although the pre-cleaning unit in the present embodiment includes the fixed brush 34 and the cleaning nozzle 35, even if only the cleaning nozzle 35 is used in order to give a wet state to the food waste of the dish and obtain the soaking effect, Good.
[0027]
More specifically, a fixed brush 34 for wiping the upper surface of the dish D is attached downward to an inverted L-shaped bracket 33 attached to the ceiling surface of the housing 16 on the right side of the supply guide cylinder 18. ing. The washing nozzle 35 is for spraying water or warm water or the like from the right side of the fixed brush 34 onto the brush 34 and the upper surface of the dish D to drop the food residue and give a wet state to the stuck matter. is there.
[0028]
In FIG. 3, a discharging unit 36 is provided on the right side of the chain-type transfer device 21. The discharging means 36 is a known device having substantially the same configuration as the push-up discharging device 12 of the main cleaning device 1, and is supported by a bearing 38 fixed to a bracket 37 and slidable up and down by the bearing 38. An elevating rod 39 having a push-up pad 39a having an enlarged diameter at the upper end, an upward U-shaped elevating plate 41 fixed to a lower end of the elevating rod 39, and having a pair of upper and lower rollers 40, 40 pivotally mounted thereon. And a drive arm 43 having a right-viewing U-shape in plan view, the tip of which is inserted between a pair of upper and lower rollers 40 and swings up and down by forward and reverse rotation of a drive shaft 42 immediately below the drive sprocket 23. I have.
[0029]
As shown in FIG. 3, when the push-up pad 39a is at the lower limit standby position, the push-up pad 39a is slightly lower than the upper surface of the horizontal transport portion at a position close to the right end of the roller chain 26. The dish D transported by the transport bar 28 of the chain 26 is smoothly transferred onto the push-up pad 39a.
[0030]
A discharge port 44 is opened in the upper surface plate 16 a of the housing 16 facing the lifting rod 39 of the discharge means 36, and a discharge guide cylinder 45 is attached to the discharge port 44 with its lower end protruding into the housing 16. ing. On the outer peripheral surface of the lower end portion of the discharge guide cylinder 45, three support pieces 46 having a U-shape in a plan view are fixed at equal intervals in the circumferential direction. An outer base end portion of a support claw 47 that projects inward through the provided insertion hole 45a is pivotally connected only upward to be rotatable.
[0031]
Four guide bars 19 are provided upright on the upper surface of the upper surface plate 16 a surrounding the discharge guide cylinder 45, and the guide bars 19 are connected to the upper surface of the right end of the housing 16, and are connected to the housing 3 of the main cleaning device 1. The case 48 extends to the upper end in the case 48 which is at the same height.
[0032]
As shown in FIG. 1, on the upper surface of the case 48 and the upper surface of the left side of the housing 3 of the main cleaning device 1, the dishware D discharged and stacked from the preliminary cleaning device 2 is supplied to the supply port of the main cleaning device 1. 4 is provided.
[0033]
As shown in FIGS. 1 and 6, the transfer device 49 is housed in a case body 50 having an open upper surface, and is pivotally attached to a disk 51 fixed to a rotating shaft of a drive motor (not shown) that faces vertically. The driving gear 52 rotates around a vertical axis, and includes a driving rod 52 reciprocating in the left-right direction and a rotating arm 53 pivotally attached to the tip (right end) of the driving rod 52. The driving gear 52 meshes with the driving gear 54. A driven gear 55 and a semi-cylindrical transfer arm fixed to the driven gear 55 and reciprocating in the direction of the arrow in FIG. 6 and capable of being pushed around the left outer peripheral surface of the plurality of dish plates D. 56. Reference numeral 57 denotes an arc-shaped guide ridge for guiding the bottom of the lowermost dish D.
[0034]
Next, a procedure for cleaning the dish D will be described. In FIG. 3, when the dishware D stacked and stocked on the guide bar 19 of the pre-cleaning device 2 is intermittently dropped via the supply roller 20 sequentially from the lowermost one, the lower part is endlessly fed. The roller chain 26 is transported rightward while being held between adjacent transport bars 28 of the roller chain 26.
[0035]
In the course of the conveyance, when it comes to the pre-cleaning section, light dirt on the upper surface of the dish D is wiped and removed by the cleaning water from the fixed brush 34 and the cleaning nozzle 35. The dish D thus preliminarily washed is transferred onto the push-up pad 39a of the discharging means 36 with the washing water adhered thereto, and is raised by the lifting rod 39 to be supported by the supporting claws 47 in the discharging guide cylinder 45. Supported.
[0036]
By repeating this process, the pre-washed dishware D is sequentially stacked upward along the guide bar 19 and is stocked.
[0037]
As shown in FIG. 1, when the laminated dish D projects a predetermined number from the upper surface of the case 48, the transfer device 49 is operated and moved to the supply port 4 on the main cleaning device 1 side. It can be put into the supply guide cylinder 5. It is preferable that the soaking time until the pre-washed dishware D moves to the next supply port 4 on the main cleaning device 1 side is 2 minutes or more in order to exert more effect in the main cleaning.
[0038]
As shown in FIG. 2, the dish D placed on the transport screw 8 sequentially from the supply guide tube 5 in the main cleaning device 1 is washed by the rotating brush 9 and the cleaning liquid sprayed from the cleaning nozzle 10 during the transport. After being washed, it is drained by compressed air from the air nozzle 11, transferred to a push-up / discharge device 12, and sequentially stocked in an upper discharge guide tube 13 and a guide bar 14 in a stacked state.
[0039]
As described above, when the pre-cleaning apparatus 2 of the above embodiment is used, a large number of dish dishes D before cleaning are stocked in a stack, and after pre-cleaning while transporting one by one, automatic The main cleaning device 1 is stacked on the upper portion along the guide bar 19 and can be sent to the main cleaning device 1 installed adjacent to the pre-cleaning device 2 for main cleaning.
[0040]
Therefore, the cleaning effect of the main dishwasher D by the main cleaning device 1 is enhanced, and even dirt that is difficult to remove protein and starch is easily removed, and the labor of pre-soaking in a sink or the like and then cleaning can be omitted. In addition, since the cleaning effect in the main cleaning device 1 is enhanced, the cycle time from the supply to the discharge of the dish D can be shortened, and the frequency of reusing the dish D can be increased.
[0041]
The present invention is not limited to the above-described embodiment. For example, in the above-described embodiment, the chain-type transport device 21 is used as the transport means of the dishware D of the preliminary cleaning device 2. It is also possible to use a transfer screw 8 similar to the above. A rotating brush may be used instead of the fixed brush 34.
[0042]
Further, as the means for pushing up the dish D, a screw-type lifting rod which can be rotated forward and backward by a fluid pressure cylinder, a solenoid, a stepping motor or the like can be used.
[0043]
Further, in the above-described embodiment, the pre-cleaning device 2 and the main cleaning device 1 are used by being arranged close to each other in separate casings. Absent.
[0044]
【The invention's effect】
According to the present invention, the following effects can be obtained.
[0045]
(A) According to the first aspect of the present invention, the cleaning liquid can be soaked in the food waste by spraying the cleaning liquid onto the dish plate in the pre-cleaning section, and the wet state can be maintained until the cleaning liquid is supplied to the main cleaning apparatus. The cleaning effect of the main cleaning device can be enhanced.
[0046]
(B) According to the second aspect of the present invention, if the dish plates are supplied to the pre-washing device, the pre-washed dish plates can be automatically laminated.
[0047]
(C) According to the third aspect of the present invention, since large food waste is brushed off before spraying the cleaning liquid, the cleaning effect is greatly improved.
[0048]
(D) According to the fourth aspect of the present invention, since the dishes are transported stably and orderly, it does not occur that the dishes are abutted on the way and cannot be transported.
[0049]
(E) According to the fifth aspect of the present invention, the horizontal conveying portion of the roller chain is prevented from swinging up and down, so that the dishes can be conveyed more stably.
[0050]
(F) According to the invention described in claim 6, a plurality of tableware dishes after pre-cleaning can be automatically moved to the supply port of the main cleaning apparatus and supplied collectively, thereby saving labor.
[Brief description of the drawings]
FIG. 1 is a front view of a pre-cleaning device of the present invention and a main cleaning device installed adjacent thereto.
FIG. 2 is a front view of a central longitudinal section of a main part of the main cleaning device.
FIG. 3 is a front view in central section of a main part of the pre-cleaning device.
FIG. 4 is an enlarged vertical sectional side view taken along line IV-IV of FIG. 3;
FIG. 5 is a cross-sectional plan view taken along line VV of FIG. 3;
FIG. 6 is a plan view of the transfer device.
[Explanation of symbols]
l Main cleaning device 2 Pre-cleaning device 3 Case 4 Supply port 5 Supply guide cylinder 6 Groove 7 Supply roller 8 Conveying screw 9 Rotary brush 10 Cleaning nozzle 11 Air nozzle 12 Push-up / discharge device 13 Discharge guide cylinder 14 Guide bar 15 Base 16 Case Body 16a Top plate 17 Supply port 18 Supply guide cylinder 19, 19a Guide bar 20 Supply roller 21 Chain-type transfer device (conveyance means)
Reference Signs List 22 drive motor 23 drive sprocket 24 driven sprocket 25 idler sprocket 26 roller chain 27 bracket 28 transfer bar 29 chain guide 30 support frame 31 adjustment bolt 32 lifting prevention rod 33 bracket 34 fixed brush 35 cleaning nozzle 36 discharge means 37 bracket 38 bearing 39 Lifting rod 39 Push-up pad 40 Roller 41 Lifting plate 42 Drive shaft 43 Drive arm 44 Discharge port 45 Discharge guide cylinder 45a Insertion hole 46 Supporting piece 47 Supporting claw 48 Case 49 Transfer device 50 Case body 51 Disk 52 Drive rod 53 times Moving arm 54 driven gear 55 driven gear 56 transfer arm 57 guide ridge

Claims (6)

A pre-washing apparatus for pre-washing dish dishes before being put into a main washing apparatus, comprising: a supply means for sequentially supplying dish dishes before washing into the pre-washing apparatus; and a pre-washing dish dish received from the supply means. Transport means for transferring the cleaning liquid to the washing unit; and discharge means provided in the vicinity of the end of the transport means for sequentially discharging the pre-washed dishware to the outside of the pre-washing device. A dishwasher pre-washing device characterized by spraying onto a dish. The supply means is for intermittently dropping the dishware before washing, which is stocked in a stack, onto the transport means in order from the lowest one, and the discharge means sequentially pushes up the dishware by a push-up member. 2. The pre-washing apparatus for dishware according to claim 1, wherein the pre-washing apparatus accumulates in an upwardly stacked state. 3. The apparatus according to claim 1, wherein the preliminary cleaning unit includes a brush that wipes an upper surface of the tableware being conveyed before spraying the cleaning liquid onto the tableware. 4. The conveying means is composed of a pair of roller chains that run around a driving sprocket and a driven sprocket and run endlessly, and a conveying bar that is suspended between the two roller chains at predetermined intervals. 4. The dishwasher pre-washing apparatus according to claim 1, wherein the bottom of the dish is inserted into a frame-shaped space surrounded by a pair of roller chains and is conveyed. The dishwasher pre-cleaning apparatus according to claim 4, wherein the horizontal transport portion of the pair of roller chains is supported by a pair of upper and lower chain guides. The tableware pre-washing device according to any one of claims 1 to 5, further comprising a transfer device for moving the plurality of dish plates accumulated in a stack by the discharge means to a supply port of a main cleaning device.

Images